Philosophical popularity waxes and wanes. At the level Monk describes, the brilliant Frank Ramsey -- with notable philosophical contributions in truth theory and probability, as well as in economic theory and mathematics -- seems similarly missing, though he died at a mere 26. Anyway, as Russell once wrote: "... since one never knows what will be the line of advance, it is always most rash to condemn what is not quite in the fashion of the moment" (from his review of MacColl’s Symbolic Logic and Its Applications in Mind, 15, 1906], p. 260).